Numerosity discrimination of tachistoscopically presented dots by mental retardates and normals.
D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D002648:Child; D004193:Discrimination Learning; D005260:Female; D006801:Humans; D007257:Information Theory; D008607:Intellectual Disability; D008297:Male; D012737:Sex Factors; D014796:Visual Perception